Snack food



FIG. 1 is a top planar view, embodying my new design;

FIG. 2 is a back elevational view thereof;

FIG. 3 is a left side elevational view thereof; the right side elevational view thereof being a mirror image;

FIG. 4 is front elevational view thereof; and,

FIG. 5 is a bottom planar view thereof. 

The ornamental design for a snack food, as shown and described. 